mA Generation
Fault Isolation
This section provides troubleshooting information about the X-ray Tube, High Voltage Tank, and mA generation.
X-ray Tube
Failure Possible Cause Remedy
System shuts down with no
error messages
Inappropriate activation of
thermal switch
Troubleshoot cooling function (see Cooling chapter in this
manual).
Arcing Candlesticks and wells Check Candlesticks and wells for black carbon trails
High Voltage Tank
WARNING: Dangerous voltages are present when covers are removed from the C-Arm.
Failure Possible Cause Remedy
Low mA
messages
High Voltage
Tank
Use the schematic diagram and an ohmmeter to verify the resistance of the 10 ohm, 15
ohm and 24k ohm resistors inside of the tank. Note that the 400 M ohm resistors cannot
be checked.
Overvoltage
messages
High Voltage
Tank
(See above)
Arcing Carbon trails on
candlesticks
Take an exposure at 120 kVp and listen for internal arcing between a High Voltage point
and the case.
6
Service
Periodic Maintenance
Contents
Schematics
Illustrated Parts
Installation
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